Very preliminary code to allow selecting the OpenGL backend at runtime.

Works in the currently supported cases for only Win32 and only X11,
the mixed case is not working yet though.
But applied anyway since the code is slightly less messy than the current one.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29980 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 29 insertions, 26 deletions

diff --git a/libvo/vo_gl2.c b/libvo/vo_gl2.c
index ff44be4043..197f7cd1b1 100644
--- a/libvo/vo_gl2.c
+++ b/libvo/vo_gl2.c
@@ -62,16 +62,7 @@ const LIBVO_EXTERN(gl2)
 /* local data */
 static unsigned char *ImageData=NULL;
 
-#ifdef GL_WIN32
-    static int gl_vinfo = 0;
-    static HGLRC gl_context = 0;
-#define update_xinerama_info w32_update_xinerama_info
-#define vo_init vo_w32_init
-#define vo_window vo_w32_window
-#else
-    static XVisualInfo *gl_vinfo = NULL;
-    static GLXContext gl_context = 0;
-#endif
+static MPGLContext glctx;
 
 static uint32_t image_width;
 static uint32_t image_height;
@@ -115,7 +106,10 @@ struct TexSquare
 
 static GLint getInternalFormat(void)
 {
+  switch (glctx.type) {
 #ifdef GL_WIN32
+  case GLTYPE_W32:
+  {
   PIXELFORMATDESCRIPTOR pfd;
   HDC vo_hdc = vo_w32_get_dc(vo_w32_window);
   int pf = GetPixelFormat(vo_hdc);
@@ -128,12 +122,18 @@ static GLint getInternalFormat(void)
     a_sz = pfd.cAlphaBits;
   }
   vo_w32_release_dc(vo_w32_window, vo_hdc);
-#else
-  if (glXGetConfig(mDisplay, gl_vinfo, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
-  if (glXGetConfig(mDisplay, gl_vinfo, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
-  if (glXGetConfig(mDisplay, gl_vinfo, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
-  if (glXGetConfig(mDisplay, gl_vinfo, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
+  }
+  break;
 #endif
+#ifdef CONFIG_X11
+  case GLTYPE_X11:
+  if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
+  if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
+  if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
+  if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
+  break;
+#endif
+  }
 
   rgb_sz=r_sz+g_sz+b_sz;
   if(rgb_sz<=0) rgb_sz=24;
@@ -637,7 +637,7 @@ config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uin
 #endif
     return -1;
 
-  if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_FAILED)
+  if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
     return -1;
 
   glVersion = glGetString(GL_VERSION);
@@ -718,7 +718,7 @@ static void check_events(void)
     }
   }
 #endif
-  e=vo_check_events();
+  e=glctx.check_events();
   if(e&VO_EVENT_RESIZE) resize(vo_dwidth, vo_dheight);
   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 }
@@ -737,7 +737,7 @@ flip_page(void)
 //  glFlush();
   if (use_glFinish)
   glFinish();
-  swapGlBuffers();
+  glctx.swapGlBuffers(&glctx);
 
   if (aspect_scaling()) // Avoid flickering borders in fullscreen mode
     glClear (GL_COLOR_BUFFER_BIT);
@@ -834,12 +834,11 @@ static void
 uninit(void)
 {
   if ( !vo_config_count ) return;
-  releaseGlContext(&gl_vinfo, &gl_context);
   if (texgrid) {
     free(texgrid);
     texgrid = NULL;
   }
-  vo_uninit();
+  uninit_mpglcontext(&glctx);
 }
 
 static const opt_t subopts[] = {
@@ -850,7 +849,11 @@ static const opt_t subopts[] = {
 
 static int preinit(const char *arg)
 {
+  enum MPGLType gltype = GLTYPE_X11;
   // set defaults
+#ifdef GL_WIN32
+  gltype = GLTYPE_W32;
+#endif
   use_yuv = 0;
   use_glFinish = 1;
   if (subopt_parse(arg, subopts) != 0) {
@@ -870,7 +873,7 @@ static int preinit(const char *arg)
             "\n" );
     return -1;
   }
-    if( !vo_init() ) return -1; // Can't open X11
+    if(!init_mpglcontext(&glctx, gltype)) return -1;
     return 0;
 }
 
@@ -886,16 +889,16 @@ static int control(uint32_t request, void *data, ...)
     case VOCTRL_GUISUPPORT:
       return VO_TRUE;
     case VOCTRL_ONTOP:
-      vo_ontop();
+      glctx.ontop();
       return VO_TRUE;
     case VOCTRL_FULLSCREEN:
-      vo_fullscreen();
-      if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_REINIT)
+      glctx.fullscreen();
+      if (glctx.setGlWindow(&glctx) == SET_WINDOW_REINIT)
         initGl(vo_dwidth, vo_dheight);
       resize(vo_dwidth, vo_dheight);
       return VO_TRUE;
     case VOCTRL_BORDER:
-      vo_border();
+      glctx.border();
       return VO_TRUE;
     case VOCTRL_GET_PANSCAN:
       return VO_TRUE;
@@ -925,7 +928,7 @@ static int control(uint32_t request, void *data, ...)
     }
 #endif
     case VOCTRL_UPDATE_SCREENINFO:
-      update_xinerama_info();
+      glctx.update_xinerama_info();
       return VO_TRUE;
   }
   return VO_NOTIMPL;